Packaging container

Abstract

To provide a packaging container which is hard to unseal fraudulently.SOLUTION: There is provided a packaging container having a first shell plate 10, a second shell plate 20, a top part, and a bottom part, in which the bottom part has a first packaged article holding plate and a second packaged article holding plate. The first packaged article holding plate has a first support plate 64 and an end side plate 68. The second packaged article holding plate has a second support plate 84, a bottom plate 88, and an insertion plate 90. The first packaged article holding plate has a semicircular arc-shaped incised line formed by incising in a substantially semicircular arc shape and a pair of linear incised lines formed by incising in a linear shape from both ends of the semicircular arc-shaped incised line. The insertion plate has a pair of protrusions 94 protruding so as to be away in the horizontal direction. The insertion plate is inserted into the semicircular arc-shaped incised line and the linear incised line and enters between the first support plate and the end side plate. Thus, the pair of protrusions 94 can be engaged with a second fold line L2.SELECTED DRAWING: Figure 13

Description

[Technical field]

[0001] The present invention relates to a packaging container for packaging an item such as a product. [Background technology]

[0002] An example of a conventional packaging container is described in Patent Document 1. In this packaging container, a first packaged item holding plate (50) and a second packaged item holding plate (70) connected to the bottom (18) side are folded back toward the inner side of the body panels (12), (14) at a first fold line (24) and a second fold line (26), respectively, to support the packaged item (G) from below inside the packaging container (holding body). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-85957 A Summary of the Invention [Problem to be solved by the invention]

[0004] The packaging container described in Patent Document 1 is configured such that a first packaged item holding plate (50) and a second packaged item holding plate (70) constituting the bottom of the packaging container (holding body) face each other and are in contact with each other, and the contacting first packaged item holding plate (50) and second packaged item holding plate (70) support the packaged item (G).

[0005] However, the packaging container described in Patent Document 1 had the problem that it was possible to illicitly remove the packaged item (G) from the bottom side of the packaging container (tampering with the container) by applying an external force to separate the first packaged item holding plate (50) and the second packaged item holding plate (70) from each other.

[0006] The present invention has been made in consideration of the above problems, and has an object to provide a packaging container which makes it difficult to illicitly remove the packaged contents, i.e., difficult to tamper with. [Means for solving the problem]

[0007] The packaging container according to the present invention comprises a first body plate, a second body plate connected to the first body plate via a side portion and facing the first body plate, a top portion formed between the first body plate and the second body plate on a packaged product removal side, and a bottom portion provided between the first body plate and the second body plate on a packaged product insertion side opposite to the top portion, and contains a packaged product between the first body plate and the second body plate. The bottom portion has a first packaged product holding plate connected to the first body plate via a first fold line, and a second packaged product holding plate connected to the second body plate via a third fold line. The first packaged item holding plate has a first support plate portion connected to the first body plate via a first fold line and an end side plate portion connected to the first support plate portion via a second fold line located on the opposite side of the first fold line and parallel to the first fold line. The second packaged item holding plate has a second support plate portion connected to the second body plate via a third fold line, a bottom plate portion connected to the second support plate portion via a fourth fold line located on the opposite side of the third fold line, and an insertion plate portion connected to the bottom plate portion via a fifth fold line located on the opposite side of the fourth fold line. The first packaged item holding plate is provided with a semicircular cut line formed by cutting the first packaged item holding plate in a substantially semicircular shape so as to intersect the second fold line and extend to the first support plate portion and the end side plate portion and so as to be convex on the end side plate portion side when the second fold line is not folded, and a pair of linear cut lines formed by cutting linearly from both ends of the semicircular cut line located on the first support plate portion so as to move away from each other in the horizontal direction. The insertion plate portion of the second packaged item holding plate has a central portion connected to the bottom plate portion via a fifth fold line, and a pair of protruding portions protruding from the central portion so as to move away from each other in the horizontal direction. The length between the respective tip ends of the pair of protruding portions of the insertion plate portion is equal to the length between the most distant tips of the pair of linear cut lines formed on the first packaged item holding plate. The insertion plate portion of the second packaged item holding plate is inserted into the semicircular arc cut line and the straight cut line formed in the first packaged item holding plate, and fits between the overlapping first support plate portion and the end side plate portion.The pair of protruding portions of the insertion plate portion can be engaged with a second folding line that is a boundary between the first support plate portion and the end side plate portion.

[0008] According to the packaging container of the present invention, the length between the respective tips of the pair of protrusions of the insertion plate portion is equal to the length between the furthest tips of the pair of linear cut lines formed on the first packaged item holding plate, so that the insertion plate portion can be inserted into the semicircular cut line and the pair of linear cut lines of the first packaged item holding plate. According to the packaging container of the present invention, the pair of protrusions of the insertion plate portion can be engaged with the second fold line which is the boundary between the first support plate portion and the end side plate portion, so that once the insertion plate portion is completely inserted into the semicircular cut line and the pair of linear cut lines of the first packaged item holding plate, the pair of protrusions of the insertion plate portion are engaged with the second fold lines, so that the insertion plate portion is prevented from slipping out of the pair of linear cut lines. Therefore, according to the packaging container of the present invention, the second packaged item holding plate cannot be separated from the first packaged item holding plate, making it difficult to illicitly remove the packaged items packaged in the packaging container from the bottom side, i.e., to illicitly open the container.

[0009] The packaging container according to the present invention may be characterized in that the pair of protrusions are each formed into an acutely pointed shape.

[0010] According to the packaging container of the present invention, the pair of protruding portions are each formed in an acutely pointed shape, so that they can be more easily engaged with the second fold line.

[0011] The packaging container of the present invention may be characterized in that the bottom plate portion of the second packaged item holding plate has a generally semicircular arc-shaped perforation formed therein, connected to the fifth fold line and extending convexly from the fifth fold line toward the fourth fold line.

[0012] According to the packaging container of the present invention, if an attempt is made to forcibly pull out the pair of protrusions of the insertion plate portion that are engaged with the second fold line, the approximately semicircular arc-shaped perforations formed from the fifth fold line, which is the boundary between the insertion plate portion and the bottom plate portion, toward the fourth fold line, will break. Therefore, according to the packaging container of the present invention, since traces of tampering attempts are left on the perforations, it is easy to determine whether the container has been tampered with or not.

[0013] The packaging container of the present invention may be characterized in that the perforation is covered by a semicircular portion formed in the end side plate portion by the semicircular arc-shaped cut line of the first packaged item holding plate.

[0014] According to the packaging container of the present invention, the semicircular portion can cover and conceal the perforation that serves as the tamper detection means. Effect of the Invention

[0015] According to the packaging container of the present invention, it is difficult to illegally remove the packaged items, that is, to tamper with the container. [Brief description of the drawings]

[0016] [Figure 1] 1 is a perspective view of a packaging container according to an embodiment of the present invention, seen from the first body panel side and the top side. [Diagram 2] 1 is a perspective view of a packaging container according to an embodiment of the present invention, seen from the second body panel side and the top side. [Diagram 3] 1 is a perspective view of a packaging container according to an embodiment of the present invention, with the top and bottom parts swapped, as viewed from the second body panel side and bottom side. [Figure 4] FIG. 2 is a bottom view of a packaging container according to an embodiment of the present invention. [Diagram 5] FIG. 1 is a diagram showing a flat body according to an embodiment of the present invention (a development view of a packaging container). [Figure 6] FIG. 2 is a perspective view showing the assembly process of the bottom of the packaging container according to the embodiment of the present invention, as viewed from the first body panel side. [Figure 7]FIG. 7 is a diagram showing the next step in FIG. 6. [Figure 8] 8A and 8B are views showing a step subsequent to that shown in FIG. 7, in which (A) is a perspective view and (B) is a cross-sectional view taken along line YY in (A). [Figure 9] 9A and 9B are views showing the next step in FIG. 8, in which (A) is a perspective view and (B) is a cross-sectional view taken along line ZZ of (A). [Figure 10] FIG. 10 is a perspective view showing the next step in FIG. 9, as seen from the second body panel side. [Figure 11] FIG. 11 is a diagram showing the next step in FIG. [Figure 12] FIG. 12 is a diagram showing the next step in FIG. 11, showing the bottom portion completed. [Figure 13] 5 is a cross-sectional view taken along line XX in FIG. 4. [Figure 14] FIG. 11 is a diagram showing a flat body according to a modified example of the present invention (developed view of a packaging container). [Figure 15] 1 is a perspective view of a packaging container according to a modified example of the present invention, seen from the first body panel side and top side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] A packaging container 1 according to an embodiment of the present invention will be described in detail below with reference to the drawings.

[0018] Here, in this specification, directions related to the packaging container 1 are defined based on Fig. 1. That is, the up-down direction and the horizontal direction are defined when the packaging container 1 is in an upright state. However, in this specification, the "horizontal direction" does not mean only the horizontal direction in the strict sense, but also includes a direction slightly inclined from the horizontal direction.

[0019] The packaging container 1 is a packaging container for mainly packaging a packaged item (not shown) which is a commodity, and is displayed at the front of a retail store or inside the store in a packaged state.

[0020] 1 to 4, the packaging container 1 includes a first body panel 10, a second body panel 20, a top panel 30, and a bottom panel 40. The packaging container 1 accommodates an item to be packaged between the first body panel 10 and the second body panel 20.

[0021] The first body panel 10 and the second body panel 20 are connected to each other so as to face each other via the first side portion 11 and the second side portion 21. In other words, the first body panel 10 and the second body panel 20 face each other so as to be able to accommodate the packaged item therebetween.

[0022] The top portion 30 is formed on the upper portion of the first body panel 10 and the second body panel 20, i.e., on the side of the packaging container 1 from which the packaged item is removed. The top portion 30 is formed with an opening perforation 31 for removing the packaged item. The top portion 30 also is formed with a hole 32 for allowing the packaging container 1 to be hung on a store shelf.

[0023] The packaging container 1, which will be described in detail later, is formed by folding a single flat body 50. That is, the diagram of the flat body 50 shown in FIG.

[0024] The configuration of the packaging container 1 will be described below with reference to a flat body 50 shown in FIG.

[0025] The material constituting the flat body 50, i.e., the packaging container 1, may be any flexible sheet-like material, and may be cardboard or a thermoplastic resin such as polyethylene terephthalate (PET), polystyrene (PS, OPS), polyvinyl chloride (PVC), polypropylene (PP), or polyolefin (PE / PP).

[0026] As shown in FIG. 5, the flat body 50 has a first body panel 10, a second body panel 20, an adhesive strip 25, a first packaged item holding plate 60, and a second packaged item holding plate 80.

[0027] The first panel 10 has a first side constituent portion 11a on the right side in FIG. 5, that is, on the horizontal opposite side to the second panel 20 when viewed from the first panel 10.

[0028] Furthermore, the first body panel 10 has a second side constituent portion 21a at the boundary with the second body panel 20. The second side constituent portion 21a is a fold line when the second body panel 20 is folded toward the first body panel 10.

[0029] The second body panel 20 has a first side constituent portion 11b on the left side of Fig. 5, i.e., on the horizontal opposite side of the first body panel 10 as viewed from the second body panel 20. The first side constituent portion 11b is a fold line along which the glue strip 25 is folded.

[0030] On the left side of the second body panel 20, i.e., on the horizontal opposite side of the first body panel 10 when viewed from the second body panel 20, a glue tab 25 is connected via the first side component 11b.

[0031] The adhesive strip 25 has an adhesive surface 26. The adhesive surface 26 is a portion where the adhesive is spread out in a planar shape. When the second side constituent part 21a (fold line 21a) is folded in a mountain fold to fold the second body panel 20 toward the first body panel 10, the adhesive strip 25 is attached to the inner surface (rear surface in FIG. 5 ) of the first body panel 10 between the first body panel 10 and the second body panel 20 by folding the first side constituent part 11b (fold line 11b) in a mountain fold, using the adhesive surface 26. This allows the first body panel 10 and the second body panel 20 to form a space for accommodating the packaged item inside, with the first body panel 10 and the second body panel 20 facing each other. The first side constituent part 11a and the first side constituent part 11b of the flat body 50 overlap each other to form the first side 11 of the packaging container 1. At the same time, the second side portion forming portion 21 a of the flat body 50 forms the second side portion 21 of the packaging container 1 .

[0032] The horizontal length of the first body panel 10 is approximately equal to the horizontal length of the second body panel 20 .

[0033] The first body panel 10 has a first top constituent part 34 at its upper part. Similarly, the second body panel 20 has a second top constituent part 36 at its upper part. The first top constituent part 34 and the second top constituent part 36 of the flat body 50 form the top part 30 of the packaging container 1 by folding the second body panel 20 towards the first body panel 10 and attaching the adhesive strip 25 to the inner surface (the back surface in FIG. 5 ) of the first body panel 10.

[0034] On the other hand, on the bottom 40 side of the packaging container 1, as shown in Fig. 4, the first body panel 10 and the second body panel 20 facing each other are each curved, forming a space shaped like the longitudinal cross section of a rugby ball between the first body panel 10 and the second body panel 20. The packaging container 1 is capable of storing the packaged item in this space.

[0035] 5, a first packaged item holding plate 60 is connected to the lower part of the first body panel 10 via a first fold line L1. The configuration of the first packaged item holding plate 60 will be described later.

[0036] A second packaged item holding plate 80 is connected to the lower part of the second body panel 20 via a third fold line L3. The configuration of the second packaged item holding plate 80 will be described later.

[0037] The first packaged item holding plate 60 connected to the first body panel 10 of the flat body 50 and the second packaged item holding plate 80 connected to the second body panel 20 of the flat body 50 are folded together as described below to form the bottom 40 of the packaging container 1.

[0038] That is, the bottom 40 of the packaging container 1 has a first packaged item holding plate 60 connected to the first body panel 10 via a first fold line L1, and a second packaged item holding plate 80 connected to the second body panel 20 via a third fold line L3. The bottom 40 formed by folding the first packaged item holding plate 60 and the second packaged item holding plate 80 is provided between the first body panel 10 and the second body panel 20 on the packaged item insertion side opposite the top panel 30, as shown in Figures 3 and 4.

[0039] The following describes the configuration of the first packaged item holding plate 60. The first packaged item holding plate 60 has a first support plate portion 64 and an end side plate portion 68, as shown in FIG.

[0040] The first support plate portion 64 is connected to the first body panel 10 via a first fold line L1.

[0041] The end side plate portion 68 is located on the opposite side of the first fold line L1 in the first support plate portion 64 and is connected via a second fold line L2 that is parallel to the first fold line L1.

[0042] The first support plate portion 64 is formed in a substantially rectangular shape. The end side plate portion 68 is formed in a substantially rectangular shape. The horizontal length of the end side plate portion 68 is slightly shorter than the horizontal length of the first support plate portion 64. The vertical width of the end side plate portion 68 is substantially equal to the vertical width of the first support plate portion 64. As a result, when the second fold line L2 is folded in a mountain fold, the end side plate portion 68 is hidden behind the first support plate portion 64.

[0043] The first fold line L1 ends at approximately the horizontal center of the first body panel 10, and a cut line C1 for forming a roughly U-shaped protruding piece connects the left and right first fold line L1. The cut line C1 for forming the protruding piece is a line formed by cutting through the sheet of the flat body 50 in the thickness direction. As a result, when the first fold line L1 is mountain-folded, a roughly U-shaped protruding piece 14 is formed that protrudes downward from the lower edge of the first body panel 10. The protruding piece 14 of the first body panel 10, in combination with a protruding piece 24 of the second body panel 20 described later, enables the packaging container 1 to stand on its own.

[0044] A semicircular cut line Cr and a pair of linear cut lines Cs are formed on the first packaged item holding plate 60. The semicircular cut line Cr and the pair of linear cut lines Cs are each formed by cutting through the sheet of the flat body 50 in the thickness direction.

[0045] The semicircular cut line Cr is formed by cutting in a substantially semicircular shape so as to intersect the second fold line L2 and reach the first support plate portion 64 and the end side plate portion 68 when the second fold line L2 is not folded (i.e., in the state of the planar body 50) and so as to be convex on the end side plate portion 68 side. The semicircular cut line Cr is an arc-shaped cut line that forms a semicircle with a radius of 10 mm, for example, and as shown in Fig. 5, most of it is disposed on the end side plate portion 68 when viewed from the second fold line L2, and the remaining portion (for example, equivalent to 2 mm from both ends of the semicircular arc) is disposed on the first support plate portion 64.

[0046] The end side plate portion 68 is cut into a substantially semicircular shape by a semicircular arc cut line Cr and has a semicircular portion 68r that is convex (downward in FIG. 5) with the second fold line L2 as the base.

[0047] The pair of linear cut lines Cs are formed by cutting linearly so as to be horizontally separated from each other from both ends of the semicircular cut line Cr located on the first support plate portion 64. The pair of linear cut lines Cs are formed continuously in the horizontal direction, for example, 2.5 mm long, from both ends of the semicircular cut line Cr located on the first support plate portion 64.

[0048] The following describes the configuration of the second packaged item holding plate 80. The second packaged item holding plate 80 has a second support plate portion 84, a bottom plate portion 88, and an insertion plate portion 90.

[0049] The second support plate portion 84 is connected to the second body panel 20 via a third fold line L3. The second support plate portion 84 is formed in a substantially rectangular shape. The horizontal length of the second support plate portion 84 is substantially equal to the horizontal length of the first support plate portion 64 of the first packaged item holding plate 60.

[0050] The bottom plate portion 88 is connected to the second support plate portion 84 via a fourth fold line L4 located on the opposite side of the third fold line L3. As shown in FIG. 4, the bottom plate portion 88 is formed in a shape that closes the space between the first body panel 10 and the second body panel 20 at the bottom 40, and functions as the bottom plate of the packaging container 1. As shown in FIG. 5, the bottom plate portion 88 is formed in a shape like the longitudinal section of a rugby ball. The fourth fold line L4, which is the boundary between the bottom plate portion 88 and the second support plate portion 84, is curved so as to be convex (upward in FIG. 5). On the other hand, the fifth fold line L5, which is the boundary between the bottom plate portion 88 and the insertion plate portion 90, is formed in a straight line.

[0051] The narrowest width in the vertical direction of the second support plate portion 84 (the length between the cut line C3 for forming the protruding piece described below and the apex of the fourth fold line L4) is slightly (e.g., 1 mm) shorter than the narrowest width in the vertical direction of the first support plate portion 64 of the first packaged item holding plate 60 (the length between the cut line C1 for forming the protruding piece and the second fold line L2).

[0052] The third fold line L3 ends at approximately the horizontal center of the second body panel 20, and a cut line C3 for forming a roughly U-shaped protruding piece connects the left and right interrupted third fold line L3. The cut line C3 for forming the protruding piece is a line formed by cutting through the sheet of the flat body 50 in the thickness direction. As a result, when the third fold line L3 is mountain-folded, a roughly U-shaped protruding piece 24 protruding downward from the lower edge of the second body panel 20 is formed.

[0053] The insertion plate portion 90 is connected via a fifth fold line L5 located on the opposite side of the fourth fold line L4 in the bottom plate portion 88. The insertion plate portion 90 is formed in a generally tongue-like shape as a whole.

[0054] The insertion plate portion 90 has a central portion 92 that is connected to the bottom plate portion 88 via a fifth fold line L5, and a pair of protruding portions 94 that protrude from the central portion 92 so as to be spaced apart from each other in the horizontal direction.

[0055] The pair of protrusions 94 are formed by forming a pair of protrusion-forming cut lines C4 that are horizontally continuous with the fifth fold line L5 at the boundary between the insertion plate portion 90 and the bottom plate portion 88, respectively.

[0056] Furthermore, each of the pair of protrusions 94 is formed into an acutely pointed shape by the pair of protrusion-forming cut lines C4 and the outline of the insertion plate portion 90 intersecting at an acute angle.

[0057] The length between the respective tips of the pair of protruding parts 94 of the insertion plate part 90 is equal to the length between the farthest tips of the pair of linear cut lines Cs formed on the first packaged item holding plate 60. This makes it possible for the insertion plate part 90 to be inserted into the semicircular arc cut line Cr and the linear cut line Cs formed on the first packaged item holding plate 60.

[0058] The bottom plate 88 of the second packaged article holding plate 80 is connected to the fifth fold line L5 and has a generally semicircular arc-shaped perforation 89 that is convex from the fifth fold line L5 toward the fourth fold line L4. The radius of the generally semicircular arc shape of the perforation 89 is, for example, 8 mm. When the insertion plate 90 is inserted into the semicircular arc-shaped cut line Cr and the linear cut line Cs and then the insertion plate 90 is pulled out, as described below, the pair of protrusions 94 of the insertion plate 90 are engaged with the second fold line L2, so that the insertion plate 90 cannot be pulled out. However, if the insertion plate 90 is still forcibly pulled out, the perforation 89 formed continuously from the fifth fold line L5, which is the boundary between the insertion plate 90 and the bottom plate 88, will break. As a result, if an attempt is made to illicitly open the packaging container 1 from the bottom 40 side, a trace of tearing will be left at the perforation 89.

[0059] Next, the process of assembling the bottom part 40 of the packaging container 1 will be described with reference to FIGS.

[0060] Fig. 6 shows the state of the flat body 50 immediately after the second body panel 20 is folded toward the first body panel 10 and the adhesive strip 25 is adhered to the inner surface (the back surface in Fig. 5) of the first body panel 10, and shows the state in which the top part 30 (not shown in Fig. 6) is placed on the lower side. That is, Fig. 6 shows the state in which the first packaged item holding plate 60 and the second packaged item holding plate 80 constituting the bottom part 40 of the packaging container 1 have not yet been folded. At this time, the first packaged item holding plate 60 and the second packaged item holding plate 80 are stretched straight upward.

[0061] From the state shown in Fig. 6, as shown in Fig. 7, the second fold line L2 of the first packaged item holding plate 60 is mountain-folded to fold the end side plate portion 68 downward, and the fifth fold line L5 of the second packaged item holding plate 80 is mountain-folded to fold the insertion plate portion 90 downward. At this time, the semicircular portion 68r formed on the end side plate portion 68 is not mountain-folded at the second fold line L2, and remains in a state of extending straight upward. As a result, an opening (not shown) is formed in the end side plate portion 68 with the semicircular arc-shaped cut line Cr as its edge.

[0062] From the state of Fig. 7, the fourth fold line L4 of the second packaged item holding plate 80 is folded in a mountain shape, and the insertion plate portion 90 is inserted toward the opening of the end side plate portion 68. As the insertion plate portion 90 is inserted, the insertion plate portion 90 is guided by the edge of the opening (semicircular cut line Cr), and the protruding portion 94 of the insertion plate portion 90 is inserted into the semicircular cut line Cr and the linear cut line Cs formed in the first support plate portion 64. Then, as shown in Figs. 8(A) and (B), with the bottom plate portion 88 of the second packaged item holding plate 80 overlapping above the end side plate portion 68 of the first packaged item holding plate 60, the pair of protruding portions 94 of the insertion plate portion 90 are slightly protruding from the semicircular cut line Cr and the linear cut line Cs formed in the first support plate portion 64.

[0063] When the insertion plate 90 is further inserted from the state shown in FIG. 8, the protruding portion 94 temporarily enters below the linear cut line Cs. However, the insertion plate 90 tries to move upward due to the elastic force of the adjacent bottom plate 88 and the second support plate 84 to which the bottom plate 88 is connected via the fourth fold line L4. When the state at this time is seen in the cross-sectional view shown in FIG. 9(B), the insertion plate 90 enters between the overlapping first support plate 64 and the end side plate 68, but the protruding portion 94 of the insertion plate 90 is engaged with the second fold line L2 which is the boundary between the first support plate 64 and the end side plate 68.

[0064] From the state shown in Figure 9, the second packaged item holding plate 80 (second support plate portion 84 and bottom plate portion 88) is pushed in so that the fourth fold line L4, which was a mountain fold of the second packaged item holding plate 80, becomes a valley fold and so that the third fold line L3 becomes a mountain fold, as shown in Figure 10.

[0065] From the state shown in Figure 10, as shown in Figure 11, the first packaged item holding plate 60 (first support plate portion 64) is pushed downward so that the first fold line L1 (not shown in Figure 10) forms a mountain fold, and at the same time, the second support plate portion 84 (not shown in Figure 11) of the second packaged item holding plate 80 is pushed further downward.

[0066] When the first support plate portion 64 is further pressed downward from the state shown in Fig. 11, the bottom plate portion 88 of the second packaged item holding plate 80 develops to close the space between the first body plate 10 and the second body plate 20, as shown in Fig. 12. Then, the first support plate portion 64 of the first packaged item holding plate 60 and the second support plate portion 84 of the second packaged item holding plate 80 support the bottom plate portion 88 from below the packaging container 1 (from above in Fig. 12). At this time, the perforations 89 (not shown in Fig. 12) formed in the bottom plate portion 88 are covered by the semicircular portion 68r of the first packaged item holding plate 60, as shown in Fig. 4.

[0067] Through the above steps, the first packaged item holding plate 60 and the second packaged item holding plate 80 are folded together, and the bottom 40 of the packaging container 1 is assembled.

[0068] (Action and effect) According to the packaging container 1, the length between the respective tips of the pair of protrusions 94 of the insertion plate portion 90 is equal to the length between the furthest tips of the pair of straight cut lines Cs formed on the first packaged item holding plate 60, so that the insertion plate portion 90 can be inserted into the semicircular arc cut line Cr and the pair of straight cut lines Cs of the first packaged item holding plate 60. According to the packaging container 1, the pair of protrusions 94 of the insertion plate portion 90 can be locked to the second fold line L2 that is the boundary between the first support plate portion 64 and the end side plate portion 68, so that once the insertion plate portion 90 is completely inserted into the semicircular arc cut line Cr and the pair of linear cut lines Cs of the first packaged item holding plate 60, as shown in Fig. 9(B) and Fig. 13, the pair of protrusions 94 of the insertion plate portion 90 are locked to the second fold line L2, thereby preventing the insertion plate portion 90 from slipping out of the pair of linear cut lines Cs. Therefore, according to the packaging container 1, it is difficult to illegally remove the packaged item packaged in the packaging container 1 from the bottom 40 side, that is, to illegally open the container.

[0069] According to the packaging container 1, the pair of protruding parts 94 are each formed in an acutely pointed shape, so that they can be more easily engaged with the second fold line L2.

[0070] According to the packaging container 1, if an attempt is made to forcibly pull out the pair of protruding portions 94 of the insertion plate portion 90 engaged with the second fold line L2, the approximately semicircular arc-shaped perforation 89 formed from the fifth fold line L5 toward the fourth fold line L4, which is the boundary between the insertion plate portion 90 and the bottom plate portion 88, will be torn. Therefore, according to the packaging container 1, since traces of any tampering attempts are left on the perforation 89, it is easy to determine whether or not the container has been tampered with.

[0071] According to the packaging container 1, the semicircular portion 68r can cover and conceal the perforation 89, which serves as the tamper-opening detection means, so that the fact that the packaging container 1 has the tamper-opening detection means is hidden from the outside.

[0072] As described above, the embodiment of the present invention has been disclosed in the above description, but the present invention is not limited thereto. In other words, various modifications can be made to the above-described embodiment in terms of mechanism, shape, material, quantity, position, arrangement, etc., without departing from the scope of the technical idea and purpose of the present invention, and such modifications are included in the present invention.

[0073] (Modification) For example, a description will be given of a packaging container 1A which is a modified example of the packaging container 1. Note that the same components as those of the packaging container 1 will be given the same reference numerals and descriptions thereof will be omitted, and only the components different from those of the packaging container 1 will be described.

[0074] The configuration of the packaging container 1A will also be described using a flat body 50A shown in FIG.

[0075] The flat body 50A has a first top constituent part 34A at the top of the first body panel 10, which can contact the back surface of the second body panel 20, specifically the back surface of the second top constituent part 36. The first top constituent part 34A is formed in a generally trapezoidal shape with an upper base shorter than a lower base, and has an opening perforation 31A that bulges downward in a bow shape at the lower base. The outline line below the opening perforation 31A forms a gusset forming fold line La for forming a gusset in the top part 30A, as described below.

[0076] Furthermore, the first top constituent part 34A has a top constituent part fold line Lc extending horizontally from the end of the upper outline of the opening perforation 31A. The top constituent part fold line Lc, in combination with the upper outline of the opening perforation 31A, serves as a fold line for folding the first top constituent part 34A downward. When the top constituent part fold line Lc is folded in a mountain fold, the surface of the first top constituent part 34A can come into contact with the back surface of the second top constituent part 36.

[0077] Furthermore, in the first top constituent portion 34A, a gusset forming fold line Lb that bulges upward in an arc shape is formed above the top constituent portion fold line Lc.

[0078] Since two gusset-forming fold lines La and Lb that convex in opposite directions are formed in the first top-constituting portion 34A of the flat body 50A, the packaging container 1A can form a gusset in the top portion 30A as shown in Fig. 15. As a result, in the packaging container 1 according to the embodiment, the storage space for the packaged item becomes narrower toward the top, i.e., toward the top portion 30, but according to the packaging container 1A according to the modified example, a packaging container with the same cross-sectional shape from the bottom portion 40 to the top portion 30 can be provided, and a thicker packaged item can be stored.

[0079] As another modification, in the packaging container 1, 1A, the pair of protrusions 94 of the insertion plate portion 90 are preferably formed in a shape pointed at an acute angle, but may have other shapes and are not limited to a shape pointed at an acute angle as long as they can be engaged with the second fold line L2. For example, the pair of protrusions 94 may be formed in a shape pointed at an obtuse angle, or may have rounded tips. [Explanation of symbols]

[0080] 1,1A packaging container 10 First Body 11 First Side 11a First side component 11b First side component (fold line) 14 Projecting piece 20 Second Body Plate 21 Second Side 21a Second side component (fold line) 24 Projecting piece 25 Glue allowance piece 26 Adhesive surface 30,30A Top 31,31A Opening perforation 32 holes 34, 34A First Top Component 36 Second Heavenly Component 40 bottom 50,50A flat body 60 First packaged item holding plate 64 First support plate portion 68 End side plate 68r Semicircular section 80 Second packaged item retaining plate 84 Second support plate portion 88 Bottom plate part 89 Perforation 90 Insertion plate section 92 Central part 94 Protrusion L1 First fold line L2 Second fold line L3 Third fold line L4 4th fold line L5 Fifth fold line La,Lb fold line for gusset formation Lc top component fold line C1,C3 Cutting lines for forming protruding pieces C4 Cut line for forming protrusion Cr Semicircular arc cut line Cs Straight score line

Claims

1. A first body panel; a second panel connected to the first panel via a side portion and facing the first panel; A top portion formed on the first body plate and the second body plate at a packaged article removal side; A bottom portion is provided between the first body plate and the second body plate on the side where the packaged item is inserted, the side opposite to the top portion, A packaging container that accommodates an item to be packaged between the first body panel and the second body panel, The bottom portion has a first packaged item holding plate connected to the first body plate via a first fold line, and a second packaged item holding plate connected to the second body plate via a third fold line, The first packaged item holding plate has a first support plate portion connected to the first body plate via a first fold line, and an end side plate portion located on the opposite side of the first support plate portion from the first fold line and connected to the first fold line via a second fold line parallel to the first fold line, The second packaged item holding plate has a second support plate portion connected to the second body plate via a third fold line, a bottom plate portion connected to the second support plate portion via a fourth fold line located on the opposite side of the third fold line, and an insertion plate portion connected to the bottom plate portion via a fifth fold line located on the opposite side of the fourth fold line, The first packaged item holding plate is provided with a semicircular cut line formed by cutting in a substantially semicircular shape so as to intersect the second fold line and extend to the first support plate portion and the end side plate portion when the second fold line is not folded, and a pair of linear cut lines formed by cutting in a linear manner from both ends of the semicircular cut line located on the first support plate portion so as to be horizontally separated from each other, The insertion plate portion of the second packaged item holding plate has a central portion connected to the bottom plate portion via a fifth fold line, and a pair of protruding portions protruding from the central portion so as to be separated from each other in the horizontal direction, The length between the respective tip ends of the pair of protrusions of the insertion plate portion is equal to the length between the farthest tips of the pair of linear cut lines formed on the first packaged item holding plate, The insertion plate portion of the second packaged item holding plate is inserted into the semicircular arc cut line and the linear cut line formed in the first packaged item holding plate, and enters between the overlapping first support plate portion and the end side plate portion, The pair of protruding portions of the insertion plate portion can be engaged with a second fold line that is a boundary between the first support plate portion and the end side plate portion. A packaging container comprising:

2. The packaging container according to claim 1, The pair of protrusions are each formed into an acutely pointed shape. A packaging container comprising:

3. The packaging container according to claim 1 or 2, The bottom plate portion of the second packaged article holding plate is connected to the fifth fold line and has a substantially semicircular arc-shaped perforation that is convex from the fifth fold line to the fourth fold line. A packaging container comprising:

4. The packaging container according to claim 3, The perforation is covered by a semicircular portion formed on the end side plate portion by the semicircular arc-shaped cut line of the first packaged item holding plate, A packaging container comprising:

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